<template>
  <div class="login-container">
    <div class="login-box">
      <h2 class="login-title">学生信息管理系统</h2>
      
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        :rules="loginRules"
        class="login-form"
      >
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            placeholder="请输入用户名"
            prefix-icon="User"
            size="large"
          />
        </el-form-item>
        
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.password"
            type="password"
            placeholder="请输入密码"
            prefix-icon="Lock"
            size="large"
            @keyup.enter="handleLogin"
            show-password
          />
        </el-form-item>
        
        <el-button
          type="primary"
          size="large"
          :loading="loading"
          class="login-button"
          @click="handleLogin"
        >
          登 录
        </el-button>
      </el-form>
    </div>
  </div>
</template>

<script setup lang="ts">
import { ref, reactive } from 'vue'
import { useRouter } from 'vue-router'
import { ElMessage, FormInstance, FormRules } from 'element-plus'
import { useUserStore } from '@/stores/user'
import { login } from '@/api/auth'
import { LoginForm } from '@/types'

const router = useRouter()
const userStore = useUserStore()

const loginFormRef = ref<FormInstance>()
const loading = ref(false)

const loginForm = reactive<LoginForm>({
  username: '',
  password: ''
})

const loginRules: FormRules = {
  username: [
    { required: true, message: '请输入用户名', trigger: 'blur' }
  ],
  password: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    { min: 6, message: '密码长度不能少于6位', trigger: 'blur' }
  ]
}

const handleLogin = async () => {
  if (!loginFormRef.value) return
  
  await loginFormRef.value.validate(async (valid) => {
    if (!valid) return
    
    loading.value = true
    
    try {
      const res = await login(loginForm)
      userStore.setUser(res.user, res.token)
      ElMessage.success('登录成功')
      router.push('/')
    } catch (error) {
      console.error('登录失败:', error)
    } finally {
      loading.value = false
    }
  })
}
</script>

<style scoped>
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-box {
  width: 400px;
  padding: 40px;
  background-color: #fff;
  border-radius: 10px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.login-title {
  text-align: center;
  margin-bottom: 30px;
  font-size: 24px;
  color: #303133;
}

.login-form {
  margin-top: 20px;
}

.login-button {
  width: 100%;
  margin-top: 10px;
}
</style>

